Contents of /tags/mkinitrd-6_5_0/busybox/util-linux/fdisk_osf.c
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Fri Jun 3 21:22:00 2011 UTC (13 years, 3 months ago) by niro
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Fri Jun 3 21:22:00 2011 UTC (13 years, 3 months ago) by niro
File MIME type: text/plain
File size: 30142 byte(s)
tagged 'mkinitrd-6_5_0'
1 | /* |
2 | * Copyright (c) 1987, 1988 Regents of the University of California. |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * 3. All advertising materials mentioning features or use of this software |
14 | * must display the following acknowledgment: |
15 | * This product includes software developed by the University of |
16 | * California, Berkeley and its contributors. |
17 | * 4. Neither the name of the University nor the names of its contributors |
18 | * may be used to endorse or promote products derived from this software |
19 | * without specific prior written permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
31 | * SUCH DAMAGE. |
32 | */ |
33 | |
34 | #if ENABLE_FEATURE_OSF_LABEL |
35 | |
36 | #ifndef BSD_DISKMAGIC |
37 | #define BSD_DISKMAGIC ((uint32_t) 0x82564557) |
38 | #endif |
39 | |
40 | #ifndef BSD_MAXPARTITIONS |
41 | #define BSD_MAXPARTITIONS 16 |
42 | #endif |
43 | |
44 | #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec" |
45 | |
46 | #if defined(i386) || defined(__sparc__) || defined(__arm__) \ |
47 | || defined(__m68k__) || defined(__mips__) || defined(__s390__) \ |
48 | || defined(__s390__) || defined(__s390x__) \ |
49 | || defined(__sh__) || defined(__x86_64__) || defined(__avr32__) |
50 | # define BSD_LABELSECTOR 1 |
51 | # define BSD_LABELOFFSET 0 |
52 | #elif defined(__alpha__) || defined(__powerpc__) || defined(__ia64__) \ |
53 | || defined(__hppa__) |
54 | # define BSD_LABELSECTOR 0 |
55 | # define BSD_LABELOFFSET 64 |
56 | #else |
57 | # error unknown architecture |
58 | #endif |
59 | |
60 | #define BSD_BBSIZE 8192 /* size of boot area, with label */ |
61 | #define BSD_SBSIZE 8192 /* max size of fs superblock */ |
62 | |
63 | struct xbsd_disklabel { |
64 | uint32_t d_magic; /* the magic number */ |
65 | int16_t d_type; /* drive type */ |
66 | int16_t d_subtype; /* controller/d_type specific */ |
67 | char d_typename[16]; /* type name, e.g. "eagle" */ |
68 | char d_packname[16]; /* pack identifier */ |
69 | /* disk geometry: */ |
70 | uint32_t d_secsize; /* # of bytes per sector */ |
71 | uint32_t d_nsectors; /* # of data sectors per track */ |
72 | uint32_t d_ntracks; /* # of tracks per cylinder */ |
73 | uint32_t d_ncylinders; /* # of data cylinders per unit */ |
74 | uint32_t d_secpercyl; /* # of data sectors per cylinder */ |
75 | uint32_t d_secperunit; /* # of data sectors per unit */ |
76 | /* |
77 | * Spares (bad sector replacements) below |
78 | * are not counted in d_nsectors or d_secpercyl. |
79 | * Spare sectors are assumed to be physical sectors |
80 | * which occupy space at the end of each track and/or cylinder. |
81 | */ |
82 | uint16_t d_sparespertrack; /* # of spare sectors per track */ |
83 | uint16_t d_sparespercyl; /* # of spare sectors per cylinder */ |
84 | /* |
85 | * Alternate cylinders include maintenance, replacement, |
86 | * configuration description areas, etc. |
87 | */ |
88 | uint32_t d_acylinders; /* # of alt. cylinders per unit */ |
89 | |
90 | /* hardware characteristics: */ |
91 | /* |
92 | * d_interleave, d_trackskew and d_cylskew describe perturbations |
93 | * in the media format used to compensate for a slow controller. |
94 | * Interleave is physical sector interleave, set up by the formatter |
95 | * or controller when formatting. When interleaving is in use, |
96 | * logically adjacent sectors are not physically contiguous, |
97 | * but instead are separated by some number of sectors. |
98 | * It is specified as the ratio of physical sectors traversed |
99 | * per logical sector. Thus an interleave of 1:1 implies contiguous |
100 | * layout, while 2:1 implies that logical sector 0 is separated |
101 | * by one sector from logical sector 1. |
102 | * d_trackskew is the offset of sector 0 on track N |
103 | * relative to sector 0 on track N-1 on the same cylinder. |
104 | * Finally, d_cylskew is the offset of sector 0 on cylinder N |
105 | * relative to sector 0 on cylinder N-1. |
106 | */ |
107 | uint16_t d_rpm; /* rotational speed */ |
108 | uint16_t d_interleave; /* hardware sector interleave */ |
109 | uint16_t d_trackskew; /* sector 0 skew, per track */ |
110 | uint16_t d_cylskew; /* sector 0 skew, per cylinder */ |
111 | uint32_t d_headswitch; /* head switch time, usec */ |
112 | uint32_t d_trkseek; /* track-to-track seek, usec */ |
113 | uint32_t d_flags; /* generic flags */ |
114 | #define NDDATA 5 |
115 | uint32_t d_drivedata[NDDATA]; /* drive-type specific information */ |
116 | #define NSPARE 5 |
117 | uint32_t d_spare[NSPARE]; /* reserved for future use */ |
118 | uint32_t d_magic2; /* the magic number (again) */ |
119 | uint16_t d_checksum; /* xor of data incl. partitions */ |
120 | /* filesystem and partition information: */ |
121 | uint16_t d_npartitions; /* number of partitions in following */ |
122 | uint32_t d_bbsize; /* size of boot area at sn0, bytes */ |
123 | uint32_t d_sbsize; /* max size of fs superblock, bytes */ |
124 | struct xbsd_partition { /* the partition table */ |
125 | uint32_t p_size; /* number of sectors in partition */ |
126 | uint32_t p_offset; /* starting sector */ |
127 | uint32_t p_fsize; /* filesystem basic fragment size */ |
128 | uint8_t p_fstype; /* filesystem type, see below */ |
129 | uint8_t p_frag; /* filesystem fragments per block */ |
130 | uint16_t p_cpg; /* filesystem cylinders per group */ |
131 | } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ |
132 | }; |
133 | |
134 | /* d_type values: */ |
135 | #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */ |
136 | #define BSD_DTYPE_MSCP 2 /* MSCP */ |
137 | #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */ |
138 | #define BSD_DTYPE_SCSI 4 /* SCSI */ |
139 | #define BSD_DTYPE_ESDI 5 /* ESDI interface */ |
140 | #define BSD_DTYPE_ST506 6 /* ST506 etc. */ |
141 | #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */ |
142 | #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */ |
143 | #define BSD_DTYPE_FLOPPY 10 /* floppy */ |
144 | |
145 | /* d_subtype values: */ |
146 | #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */ |
147 | #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */ |
148 | #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */ |
149 | |
150 | static const char *const xbsd_dktypenames[] = { |
151 | "unknown", |
152 | "SMD", |
153 | "MSCP", |
154 | "old DEC", |
155 | "SCSI", |
156 | "ESDI", |
157 | "ST506", |
158 | "HP-IB", |
159 | "HP-FL", |
160 | "type 9", |
161 | "floppy", |
162 | 0 |
163 | }; |
164 | |
165 | |
166 | /* |
167 | * Filesystem type and version. |
168 | * Used to interpret other filesystem-specific |
169 | * per-partition information. |
170 | */ |
171 | #define BSD_FS_UNUSED 0 /* unused */ |
172 | #define BSD_FS_SWAP 1 /* swap */ |
173 | #define BSD_FS_V6 2 /* Sixth Edition */ |
174 | #define BSD_FS_V7 3 /* Seventh Edition */ |
175 | #define BSD_FS_SYSV 4 /* System V */ |
176 | #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */ |
177 | #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */ |
178 | #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */ |
179 | #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */ |
180 | #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */ |
181 | #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */ |
182 | #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */ |
183 | #define BSD_FS_ISOFS BSD_FS_ISO9660 |
184 | #define BSD_FS_BOOT 13 /* partition contains bootstrap */ |
185 | #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */ |
186 | #define BSD_FS_HFS 15 /* Macintosh HFS */ |
187 | #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */ |
188 | |
189 | /* this is annoying, but it's also the way it is :-( */ |
190 | #ifdef __alpha__ |
191 | #define BSD_FS_EXT2 8 /* ext2 file system */ |
192 | #else |
193 | #define BSD_FS_MSDOS 8 /* MS-DOS file system */ |
194 | #endif |
195 | |
196 | static const char *const xbsd_fstypes[] = { |
197 | "\x00" "unused", /* BSD_FS_UNUSED */ |
198 | "\x01" "swap", /* BSD_FS_SWAP */ |
199 | "\x02" "Version 6", /* BSD_FS_V6 */ |
200 | "\x03" "Version 7", /* BSD_FS_V7 */ |
201 | "\x04" "System V", /* BSD_FS_SYSV */ |
202 | "\x05" "4.1BSD", /* BSD_FS_V71K */ |
203 | "\x06" "Eighth Edition", /* BSD_FS_V8 */ |
204 | "\x07" "4.2BSD", /* BSD_FS_BSDFFS */ |
205 | #ifdef __alpha__ |
206 | "\x08" "ext2", /* BSD_FS_EXT2 */ |
207 | #else |
208 | "\x08" "MS-DOS", /* BSD_FS_MSDOS */ |
209 | #endif |
210 | "\x09" "4.4LFS", /* BSD_FS_BSDLFS */ |
211 | "\x0a" "unknown", /* BSD_FS_OTHER */ |
212 | "\x0b" "HPFS", /* BSD_FS_HPFS */ |
213 | "\x0c" "ISO-9660", /* BSD_FS_ISO9660 */ |
214 | "\x0d" "boot", /* BSD_FS_BOOT */ |
215 | "\x0e" "ADOS", /* BSD_FS_ADOS */ |
216 | "\x0f" "HFS", /* BSD_FS_HFS */ |
217 | "\x10" "AdvFS", /* BSD_FS_ADVFS */ |
218 | NULL |
219 | }; |
220 | |
221 | |
222 | /* |
223 | * flags shared by various drives: |
224 | */ |
225 | #define BSD_D_REMOVABLE 0x01 /* removable media */ |
226 | #define BSD_D_ECC 0x02 /* supports ECC */ |
227 | #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */ |
228 | #define BSD_D_RAMDISK 0x08 /* disk emulator */ |
229 | #define BSD_D_CHAIN 0x10 /* can do back-back transfers */ |
230 | #define BSD_D_DOSPART 0x20 /* within MSDOS partition */ |
231 | |
232 | /* |
233 | Changes: |
234 | 19990319 - Arnaldo Carvalho de Melo <acme@conectiva.com.br> - i18n/nls |
235 | |
236 | 20000101 - David Huggins-Daines <dhuggins@linuxcare.com> - Better |
237 | support for OSF/1 disklabels on Alpha. |
238 | Also fixed unaligned accesses in alpha_bootblock_checksum() |
239 | */ |
240 | |
241 | #define FREEBSD_PARTITION 0xa5 |
242 | #define NETBSD_PARTITION 0xa9 |
243 | |
244 | static void xbsd_delete_part(void); |
245 | static void xbsd_new_part(void); |
246 | static void xbsd_write_disklabel(void); |
247 | static int xbsd_create_disklabel(void); |
248 | static void xbsd_edit_disklabel(void); |
249 | static void xbsd_write_bootstrap(void); |
250 | static void xbsd_change_fstype(void); |
251 | static int xbsd_get_part_index(int max); |
252 | static int xbsd_check_new_partition(int *i); |
253 | static void xbsd_list_types(void); |
254 | static uint16_t xbsd_dkcksum(struct xbsd_disklabel *lp); |
255 | static int xbsd_initlabel(struct partition *p); |
256 | static int xbsd_readlabel(struct partition *p); |
257 | static int xbsd_writelabel(struct partition *p); |
258 | |
259 | #if defined(__alpha__) |
260 | static void alpha_bootblock_checksum(char *boot); |
261 | #endif |
262 | |
263 | #if !defined(__alpha__) |
264 | static int xbsd_translate_fstype(int linux_type); |
265 | static void xbsd_link_part(void); |
266 | static struct partition *xbsd_part; |
267 | static int xbsd_part_index; |
268 | #endif |
269 | |
270 | |
271 | /* Group big globals data and allocate it in one go */ |
272 | struct bsd_globals { |
273 | /* We access this through a uint64_t * when checksumming */ |
274 | /* hopefully xmalloc gives us required alignment */ |
275 | char disklabelbuffer[BSD_BBSIZE]; |
276 | struct xbsd_disklabel xbsd_dlabel; |
277 | }; |
278 | |
279 | static struct bsd_globals *bsd_globals_ptr; |
280 | |
281 | #define disklabelbuffer (bsd_globals_ptr->disklabelbuffer) |
282 | #define xbsd_dlabel (bsd_globals_ptr->xbsd_dlabel) |
283 | |
284 | |
285 | /* Code */ |
286 | |
287 | #define bsd_cround(n) \ |
288 | (display_in_cyl_units ? ((n)/xbsd_dlabel.d_secpercyl) + 1 : (n)) |
289 | |
290 | /* |
291 | * Test whether the whole disk has BSD disk label magic. |
292 | * |
293 | * Note: often reformatting with DOS-type label leaves the BSD magic, |
294 | * so this does not mean that there is a BSD disk label. |
295 | */ |
296 | static int |
297 | check_osf_label(void) |
298 | { |
299 | if (xbsd_readlabel(NULL) == 0) |
300 | return 0; |
301 | return 1; |
302 | } |
303 | |
304 | static int |
305 | bsd_trydev(const char * dev) |
306 | { |
307 | if (xbsd_readlabel(NULL) == 0) |
308 | return -1; |
309 | printf("\nBSD label for device: %s\n", dev); |
310 | xbsd_print_disklabel(0); |
311 | return 0; |
312 | } |
313 | |
314 | static void |
315 | bsd_menu(void) |
316 | { |
317 | puts("Command Action"); |
318 | puts("d\tdelete a BSD partition"); |
319 | puts("e\tedit drive data"); |
320 | puts("i\tinstall bootstrap"); |
321 | puts("l\tlist known filesystem types"); |
322 | puts("n\tadd a new BSD partition"); |
323 | puts("p\tprint BSD partition table"); |
324 | puts("q\tquit without saving changes"); |
325 | puts("r\treturn to main menu"); |
326 | puts("s\tshow complete disklabel"); |
327 | puts("t\tchange a partition's filesystem id"); |
328 | puts("u\tchange units (cylinders/sectors)"); |
329 | puts("w\twrite disklabel to disk"); |
330 | #if !defined(__alpha__) |
331 | puts("x\tlink BSD partition to non-BSD partition"); |
332 | #endif |
333 | } |
334 | |
335 | #if !defined(__alpha__) |
336 | static int |
337 | hidden(int type) |
338 | { |
339 | return type ^ 0x10; |
340 | } |
341 | |
342 | static int |
343 | is_bsd_partition_type(int type) |
344 | { |
345 | return (type == FREEBSD_PARTITION || |
346 | type == hidden(FREEBSD_PARTITION) || |
347 | type == NETBSD_PARTITION || |
348 | type == hidden(NETBSD_PARTITION)); |
349 | } |
350 | #endif |
351 | |
352 | static void |
353 | bsd_select(void) |
354 | { |
355 | #if !defined(__alpha__) |
356 | int t, ss; |
357 | struct partition *p; |
358 | |
359 | for (t = 0; t < 4; t++) { |
360 | p = get_part_table(t); |
361 | if (p && is_bsd_partition_type(p->sys_ind)) { |
362 | xbsd_part = p; |
363 | xbsd_part_index = t; |
364 | ss = get_start_sect(xbsd_part); |
365 | if (ss == 0) { |
366 | printf("Partition %s has invalid starting sector 0\n", |
367 | partname(disk_device, t+1, 0)); |
368 | return; |
369 | } |
370 | printf("Reading disklabel of %s at sector %u\n", |
371 | partname(disk_device, t+1, 0), ss + BSD_LABELSECTOR); |
372 | if (xbsd_readlabel(xbsd_part) == 0) |
373 | if (xbsd_create_disklabel() == 0) |
374 | return; |
375 | break; |
376 | } |
377 | } |
378 | |
379 | if (t == 4) { |
380 | printf("There is no *BSD partition on %s\n", disk_device); |
381 | return; |
382 | } |
383 | |
384 | #elif defined(__alpha__) |
385 | |
386 | if (xbsd_readlabel(NULL) == 0) |
387 | if (xbsd_create_disklabel() == 0) |
388 | exit(EXIT_SUCCESS); |
389 | |
390 | #endif |
391 | |
392 | while (1) { |
393 | bb_putchar('\n'); |
394 | switch (tolower(read_nonempty("BSD disklabel command (m for help): "))) { |
395 | case 'd': |
396 | xbsd_delete_part(); |
397 | break; |
398 | case 'e': |
399 | xbsd_edit_disklabel(); |
400 | break; |
401 | case 'i': |
402 | xbsd_write_bootstrap(); |
403 | break; |
404 | case 'l': |
405 | xbsd_list_types(); |
406 | break; |
407 | case 'n': |
408 | xbsd_new_part(); |
409 | break; |
410 | case 'p': |
411 | xbsd_print_disklabel(0); |
412 | break; |
413 | case 'q': |
414 | if (ENABLE_FEATURE_CLEAN_UP) |
415 | close_dev_fd(); |
416 | exit(EXIT_SUCCESS); |
417 | case 'r': |
418 | return; |
419 | case 's': |
420 | xbsd_print_disklabel(1); |
421 | break; |
422 | case 't': |
423 | xbsd_change_fstype(); |
424 | break; |
425 | case 'u': |
426 | change_units(); |
427 | break; |
428 | case 'w': |
429 | xbsd_write_disklabel(); |
430 | break; |
431 | #if !defined(__alpha__) |
432 | case 'x': |
433 | xbsd_link_part(); |
434 | break; |
435 | #endif |
436 | default: |
437 | bsd_menu(); |
438 | break; |
439 | } |
440 | } |
441 | } |
442 | |
443 | static void |
444 | xbsd_delete_part(void) |
445 | { |
446 | int i; |
447 | |
448 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
449 | xbsd_dlabel.d_partitions[i].p_size = 0; |
450 | xbsd_dlabel.d_partitions[i].p_offset = 0; |
451 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
452 | if (xbsd_dlabel.d_npartitions == i + 1) |
453 | while (xbsd_dlabel.d_partitions[xbsd_dlabel.d_npartitions-1].p_size == 0) |
454 | xbsd_dlabel.d_npartitions--; |
455 | } |
456 | |
457 | static void |
458 | xbsd_new_part(void) |
459 | { |
460 | off_t begin, end; |
461 | char mesg[256]; |
462 | int i; |
463 | |
464 | if (!xbsd_check_new_partition(&i)) |
465 | return; |
466 | |
467 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
468 | begin = get_start_sect(xbsd_part); |
469 | end = begin + get_nr_sects(xbsd_part) - 1; |
470 | #else |
471 | begin = 0; |
472 | end = xbsd_dlabel.d_secperunit - 1; |
473 | #endif |
474 | |
475 | snprintf(mesg, sizeof(mesg), "First %s", str_units(SINGULAR)); |
476 | begin = read_int(bsd_cround(begin), bsd_cround(begin), bsd_cround(end), |
477 | 0, mesg); |
478 | |
479 | if (display_in_cyl_units) |
480 | begin = (begin - 1) * xbsd_dlabel.d_secpercyl; |
481 | |
482 | snprintf(mesg, sizeof(mesg), "Last %s or +size or +sizeM or +sizeK", |
483 | str_units(SINGULAR)); |
484 | end = read_int(bsd_cround(begin), bsd_cround(end), bsd_cround(end), |
485 | bsd_cround(begin), mesg); |
486 | |
487 | if (display_in_cyl_units) |
488 | end = end * xbsd_dlabel.d_secpercyl - 1; |
489 | |
490 | xbsd_dlabel.d_partitions[i].p_size = end - begin + 1; |
491 | xbsd_dlabel.d_partitions[i].p_offset = begin; |
492 | xbsd_dlabel.d_partitions[i].p_fstype = BSD_FS_UNUSED; |
493 | } |
494 | |
495 | static void |
496 | xbsd_print_disklabel(int show_all) |
497 | { |
498 | struct xbsd_disklabel *lp = &xbsd_dlabel; |
499 | struct xbsd_partition *pp; |
500 | int i, j; |
501 | |
502 | if (show_all) { |
503 | static const int d_masks[] = { BSD_D_REMOVABLE, BSD_D_ECC, BSD_D_BADSECT }; |
504 | |
505 | #if defined(__alpha__) |
506 | printf("# %s:\n", disk_device); |
507 | #else |
508 | printf("# %s:\n", partname(disk_device, xbsd_part_index+1, 0)); |
509 | #endif |
510 | if ((unsigned) lp->d_type < ARRAY_SIZE(xbsd_dktypenames)-1) |
511 | printf("type: %s\n", xbsd_dktypenames[lp->d_type]); |
512 | else |
513 | printf("type: %u\n", lp->d_type); |
514 | printf("disk: %.*s\n", (int) sizeof(lp->d_typename), lp->d_typename); |
515 | printf("label: %.*s\n", (int) sizeof(lp->d_packname), lp->d_packname); |
516 | printf("flags: "); |
517 | print_flags_separated(d_masks, "removable\0""ecc\0""badsect\0", lp->d_flags, " "); |
518 | bb_putchar('\n'); |
519 | /* On various machines the fields of *lp are short/int/long */ |
520 | /* In order to avoid problems, we cast them all to long. */ |
521 | printf("bytes/sector: %lu\n", (long) lp->d_secsize); |
522 | printf("sectors/track: %lu\n", (long) lp->d_nsectors); |
523 | printf("tracks/cylinder: %lu\n", (long) lp->d_ntracks); |
524 | printf("sectors/cylinder: %lu\n", (long) lp->d_secpercyl); |
525 | printf("cylinders: %lu\n", (long) lp->d_ncylinders); |
526 | printf("rpm: %u\n", lp->d_rpm); |
527 | printf("interleave: %u\n", lp->d_interleave); |
528 | printf("trackskew: %u\n", lp->d_trackskew); |
529 | printf("cylinderskew: %u\n", lp->d_cylskew); |
530 | printf("headswitch: %lu\t\t# milliseconds\n", |
531 | (long) lp->d_headswitch); |
532 | printf("track-to-track seek: %lu\t# milliseconds\n", |
533 | (long) lp->d_trkseek); |
534 | printf("drivedata: "); |
535 | for (i = NDDATA - 1; i >= 0; i--) |
536 | if (lp->d_drivedata[i]) |
537 | break; |
538 | if (i < 0) |
539 | i = 0; |
540 | for (j = 0; j <= i; j++) |
541 | printf("%lu ", (long) lp->d_drivedata[j]); |
542 | } |
543 | printf("\n%u partitions:\n", lp->d_npartitions); |
544 | printf("# start end size fstype [fsize bsize cpg]\n"); |
545 | pp = lp->d_partitions; |
546 | for (i = 0; i < lp->d_npartitions; i++, pp++) { |
547 | if (pp->p_size) { |
548 | if (display_in_cyl_units && lp->d_secpercyl) { |
549 | printf(" %c: %8lu%c %8lu%c %8lu%c ", |
550 | 'a' + i, |
551 | (unsigned long) pp->p_offset / lp->d_secpercyl + 1, |
552 | (pp->p_offset % lp->d_secpercyl) ? '*' : ' ', |
553 | (unsigned long) (pp->p_offset + pp->p_size + lp->d_secpercyl - 1) / lp->d_secpercyl, |
554 | ((pp->p_offset + pp->p_size) % lp->d_secpercyl) ? '*' : ' ', |
555 | (long) pp->p_size / lp->d_secpercyl, |
556 | (pp->p_size % lp->d_secpercyl) ? '*' : ' ' |
557 | ); |
558 | } else { |
559 | printf(" %c: %8lu %8lu %8lu ", |
560 | 'a' + i, |
561 | (long) pp->p_offset, |
562 | (long) pp->p_offset + pp->p_size - 1, |
563 | (long) pp->p_size |
564 | ); |
565 | } |
566 | |
567 | if ((unsigned) pp->p_fstype < ARRAY_SIZE(xbsd_fstypes)-1) |
568 | printf("%8.8s", xbsd_fstypes[pp->p_fstype]); |
569 | else |
570 | printf("%8x", pp->p_fstype); |
571 | |
572 | switch (pp->p_fstype) { |
573 | case BSD_FS_UNUSED: |
574 | printf(" %5lu %5lu %5.5s ", |
575 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, ""); |
576 | break; |
577 | case BSD_FS_BSDFFS: |
578 | printf(" %5lu %5lu %5u ", |
579 | (long) pp->p_fsize, (long) pp->p_fsize * pp->p_frag, pp->p_cpg); |
580 | break; |
581 | default: |
582 | printf("%22.22s", ""); |
583 | break; |
584 | } |
585 | bb_putchar('\n'); |
586 | } |
587 | } |
588 | } |
589 | |
590 | static void |
591 | xbsd_write_disklabel(void) |
592 | { |
593 | #if defined(__alpha__) |
594 | printf("Writing disklabel to %s\n", disk_device); |
595 | xbsd_writelabel(NULL); |
596 | #else |
597 | printf("Writing disklabel to %s\n", |
598 | partname(disk_device, xbsd_part_index + 1, 0)); |
599 | xbsd_writelabel(xbsd_part); |
600 | #endif |
601 | reread_partition_table(0); /* no exit yet */ |
602 | } |
603 | |
604 | static int |
605 | xbsd_create_disklabel(void) |
606 | { |
607 | char c; |
608 | |
609 | #if defined(__alpha__) |
610 | printf("%s contains no disklabel\n", disk_device); |
611 | #else |
612 | printf("%s contains no disklabel\n", |
613 | partname(disk_device, xbsd_part_index + 1, 0)); |
614 | #endif |
615 | |
616 | while (1) { |
617 | c = read_nonempty("Do you want to create a disklabel? (y/n) "); |
618 | if ((c|0x20) == 'y') { |
619 | if (xbsd_initlabel( |
620 | #if defined(__alpha__) || defined(__powerpc__) || defined(__hppa__) || \ |
621 | defined(__s390__) || defined(__s390x__) |
622 | NULL |
623 | #else |
624 | xbsd_part |
625 | #endif |
626 | ) == 1) { |
627 | xbsd_print_disklabel(1); |
628 | return 1; |
629 | } |
630 | return 0; |
631 | } |
632 | if ((c|0x20) == 'n') |
633 | return 0; |
634 | } |
635 | } |
636 | |
637 | static int |
638 | edit_int(int def, const char *mesg) |
639 | { |
640 | mesg = xasprintf("%s (%u): ", mesg, def); |
641 | do { |
642 | if (!read_line(mesg)) |
643 | goto ret; |
644 | } while (!isdigit(*line_ptr)); |
645 | def = atoi(line_ptr); |
646 | ret: |
647 | free((char*)mesg); |
648 | return def; |
649 | } |
650 | |
651 | static void |
652 | xbsd_edit_disklabel(void) |
653 | { |
654 | struct xbsd_disklabel *d; |
655 | |
656 | d = &xbsd_dlabel; |
657 | |
658 | #if defined(__alpha__) || defined(__ia64__) |
659 | d->d_secsize = edit_int(d->d_secsize , "bytes/sector"); |
660 | d->d_nsectors = edit_int(d->d_nsectors , "sectors/track"); |
661 | d->d_ntracks = edit_int(d->d_ntracks , "tracks/cylinder"); |
662 | d->d_ncylinders = edit_int(d->d_ncylinders , "cylinders"); |
663 | #endif |
664 | |
665 | /* d->d_secpercyl can be != d->d_nsectors * d->d_ntracks */ |
666 | while (1) { |
667 | d->d_secpercyl = edit_int(d->d_nsectors * d->d_ntracks, |
668 | "sectors/cylinder"); |
669 | if (d->d_secpercyl <= d->d_nsectors * d->d_ntracks) |
670 | break; |
671 | |
672 | printf("Must be <= sectors/track * tracks/cylinder (default)\n"); |
673 | } |
674 | d->d_rpm = edit_int(d->d_rpm , "rpm"); |
675 | d->d_interleave = edit_int(d->d_interleave, "interleave"); |
676 | d->d_trackskew = edit_int(d->d_trackskew , "trackskew"); |
677 | d->d_cylskew = edit_int(d->d_cylskew , "cylinderskew"); |
678 | d->d_headswitch = edit_int(d->d_headswitch, "headswitch"); |
679 | d->d_trkseek = edit_int(d->d_trkseek , "track-to-track seek"); |
680 | |
681 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
682 | } |
683 | |
684 | static int |
685 | xbsd_get_bootstrap(char *path, void *ptr, int size) |
686 | { |
687 | int fdb; |
688 | |
689 | fdb = open_or_warn(path, O_RDONLY); |
690 | if (fdb < 0) { |
691 | return 0; |
692 | } |
693 | if (full_read(fdb, ptr, size) < 0) { |
694 | bb_simple_perror_msg(path); |
695 | close(fdb); |
696 | return 0; |
697 | } |
698 | printf(" ... %s\n", path); |
699 | close(fdb); |
700 | return 1; |
701 | } |
702 | |
703 | static void |
704 | sync_disks(void) |
705 | { |
706 | printf("Syncing disks\n"); |
707 | sync(); |
708 | /* sleep(4); What? */ |
709 | } |
710 | |
711 | static void |
712 | xbsd_write_bootstrap(void) |
713 | { |
714 | char path[MAXPATHLEN]; |
715 | const char *bootdir = BSD_LINUX_BOOTDIR; |
716 | const char *dkbasename; |
717 | struct xbsd_disklabel dl; |
718 | char *d, *p, *e; |
719 | int sector; |
720 | |
721 | if (xbsd_dlabel.d_type == BSD_DTYPE_SCSI) |
722 | dkbasename = "sd"; |
723 | else |
724 | dkbasename = "wd"; |
725 | |
726 | snprintf(path, sizeof(path), "Bootstrap: %sboot -> boot%s (%s): ", |
727 | dkbasename, dkbasename, dkbasename); |
728 | if (read_line(path)) { |
729 | dkbasename = line_ptr; |
730 | } |
731 | snprintf(path, sizeof(path), "%s/%sboot", bootdir, dkbasename); |
732 | if (!xbsd_get_bootstrap(path, disklabelbuffer, (int) xbsd_dlabel.d_secsize)) |
733 | return; |
734 | |
735 | /* We need a backup of the disklabel (xbsd_dlabel might have changed). */ |
736 | d = &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE]; |
737 | memmove(&dl, d, sizeof(struct xbsd_disklabel)); |
738 | |
739 | /* The disklabel will be overwritten by 0's from bootxx anyway */ |
740 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
741 | |
742 | snprintf(path, sizeof(path), "%s/boot%s", bootdir, dkbasename); |
743 | if (!xbsd_get_bootstrap(path, &disklabelbuffer[xbsd_dlabel.d_secsize], |
744 | (int) xbsd_dlabel.d_bbsize - xbsd_dlabel.d_secsize)) |
745 | return; |
746 | |
747 | e = d + sizeof(struct xbsd_disklabel); |
748 | for (p = d; p < e; p++) |
749 | if (*p) { |
750 | printf("Bootstrap overlaps with disk label!\n"); |
751 | exit(EXIT_FAILURE); |
752 | } |
753 | |
754 | memmove(d, &dl, sizeof(struct xbsd_disklabel)); |
755 | |
756 | #if defined(__powerpc__) || defined(__hppa__) |
757 | sector = 0; |
758 | #elif defined(__alpha__) |
759 | sector = 0; |
760 | alpha_bootblock_checksum(disklabelbuffer); |
761 | #else |
762 | sector = get_start_sect(xbsd_part); |
763 | #endif |
764 | |
765 | seek_sector(sector); |
766 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
767 | |
768 | #if defined(__alpha__) |
769 | printf("Bootstrap installed on %s\n", disk_device); |
770 | #else |
771 | printf("Bootstrap installed on %s\n", |
772 | partname(disk_device, xbsd_part_index+1, 0)); |
773 | #endif |
774 | |
775 | sync_disks(); |
776 | } |
777 | |
778 | static void |
779 | xbsd_change_fstype(void) |
780 | { |
781 | int i; |
782 | |
783 | i = xbsd_get_part_index(xbsd_dlabel.d_npartitions); |
784 | xbsd_dlabel.d_partitions[i].p_fstype = read_hex(xbsd_fstypes); |
785 | } |
786 | |
787 | static int |
788 | xbsd_get_part_index(int max) |
789 | { |
790 | char prompt[sizeof("Partition (a-%c): ") + 16]; |
791 | char l; |
792 | |
793 | snprintf(prompt, sizeof(prompt), "Partition (a-%c): ", 'a' + max - 1); |
794 | do |
795 | l = tolower(read_nonempty(prompt)); |
796 | while (l < 'a' || l > 'a' + max - 1); |
797 | return l - 'a'; |
798 | } |
799 | |
800 | static int |
801 | xbsd_check_new_partition(int *i) |
802 | { |
803 | /* room for more? various BSD flavours have different maxima */ |
804 | if (xbsd_dlabel.d_npartitions == BSD_MAXPARTITIONS) { |
805 | int t; |
806 | |
807 | for (t = 0; t < BSD_MAXPARTITIONS; t++) |
808 | if (xbsd_dlabel.d_partitions[t].p_size == 0) |
809 | break; |
810 | |
811 | if (t == BSD_MAXPARTITIONS) { |
812 | printf("The maximum number of partitions has been created\n"); |
813 | return 0; |
814 | } |
815 | } |
816 | |
817 | *i = xbsd_get_part_index(BSD_MAXPARTITIONS); |
818 | |
819 | if (*i >= xbsd_dlabel.d_npartitions) |
820 | xbsd_dlabel.d_npartitions = (*i) + 1; |
821 | |
822 | if (xbsd_dlabel.d_partitions[*i].p_size != 0) { |
823 | printf("This partition already exists\n"); |
824 | return 0; |
825 | } |
826 | |
827 | return 1; |
828 | } |
829 | |
830 | static void |
831 | xbsd_list_types(void) |
832 | { |
833 | list_types(xbsd_fstypes); |
834 | } |
835 | |
836 | static uint16_t |
837 | xbsd_dkcksum(struct xbsd_disklabel *lp) |
838 | { |
839 | uint16_t *start, *end; |
840 | uint16_t sum = 0; |
841 | |
842 | start = (uint16_t *) lp; |
843 | end = (uint16_t *) &lp->d_partitions[lp->d_npartitions]; |
844 | while (start < end) |
845 | sum ^= *start++; |
846 | return sum; |
847 | } |
848 | |
849 | static int |
850 | xbsd_initlabel(struct partition *p) |
851 | { |
852 | struct xbsd_disklabel *d = &xbsd_dlabel; |
853 | struct xbsd_partition *pp; |
854 | |
855 | get_geometry(); |
856 | memset(d, 0, sizeof(struct xbsd_disklabel)); |
857 | |
858 | d->d_magic = BSD_DISKMAGIC; |
859 | |
860 | if (strncmp(disk_device, "/dev/sd", 7) == 0) |
861 | d->d_type = BSD_DTYPE_SCSI; |
862 | else |
863 | d->d_type = BSD_DTYPE_ST506; |
864 | |
865 | #if !defined(__alpha__) |
866 | d->d_flags = BSD_D_DOSPART; |
867 | #else |
868 | d->d_flags = 0; |
869 | #endif |
870 | d->d_secsize = SECTOR_SIZE; /* bytes/sector */ |
871 | d->d_nsectors = g_sectors; /* sectors/track */ |
872 | d->d_ntracks = g_heads; /* tracks/cylinder (heads) */ |
873 | d->d_ncylinders = g_cylinders; |
874 | d->d_secpercyl = g_sectors * g_heads;/* sectors/cylinder */ |
875 | if (d->d_secpercyl == 0) |
876 | d->d_secpercyl = 1; /* avoid segfaults */ |
877 | d->d_secperunit = d->d_secpercyl * d->d_ncylinders; |
878 | |
879 | d->d_rpm = 3600; |
880 | d->d_interleave = 1; |
881 | d->d_trackskew = 0; |
882 | d->d_cylskew = 0; |
883 | d->d_headswitch = 0; |
884 | d->d_trkseek = 0; |
885 | |
886 | d->d_magic2 = BSD_DISKMAGIC; |
887 | d->d_bbsize = BSD_BBSIZE; |
888 | d->d_sbsize = BSD_SBSIZE; |
889 | |
890 | #if !defined(__alpha__) |
891 | d->d_npartitions = 4; |
892 | pp = &d->d_partitions[2]; /* Partition C should be NetBSD partition */ |
893 | |
894 | pp->p_offset = get_start_sect(p); |
895 | pp->p_size = get_nr_sects(p); |
896 | pp->p_fstype = BSD_FS_UNUSED; |
897 | pp = &d->d_partitions[3]; /* Partition D should be whole disk */ |
898 | |
899 | pp->p_offset = 0; |
900 | pp->p_size = d->d_secperunit; |
901 | pp->p_fstype = BSD_FS_UNUSED; |
902 | #else |
903 | d->d_npartitions = 3; |
904 | pp = &d->d_partitions[2]; /* Partition C should be |
905 | the whole disk */ |
906 | pp->p_offset = 0; |
907 | pp->p_size = d->d_secperunit; |
908 | pp->p_fstype = BSD_FS_UNUSED; |
909 | #endif |
910 | |
911 | return 1; |
912 | } |
913 | |
914 | /* |
915 | * Read a xbsd_disklabel from sector 0 or from the starting sector of p. |
916 | * If it has the right magic, return 1. |
917 | */ |
918 | static int |
919 | xbsd_readlabel(struct partition *p) |
920 | { |
921 | struct xbsd_disklabel *d; |
922 | int t, sector; |
923 | |
924 | if (!bsd_globals_ptr) |
925 | bsd_globals_ptr = xzalloc(sizeof(*bsd_globals_ptr)); |
926 | |
927 | d = &xbsd_dlabel; |
928 | |
929 | /* p is used only to get the starting sector */ |
930 | #if !defined(__alpha__) |
931 | sector = (p ? get_start_sect(p) : 0); |
932 | #else |
933 | sector = 0; |
934 | #endif |
935 | |
936 | seek_sector(sector); |
937 | if (BSD_BBSIZE != full_read(dev_fd, disklabelbuffer, BSD_BBSIZE)) |
938 | fdisk_fatal(unable_to_read); |
939 | |
940 | memmove(d, &disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
941 | sizeof(struct xbsd_disklabel)); |
942 | |
943 | if (d->d_magic != BSD_DISKMAGIC || d->d_magic2 != BSD_DISKMAGIC) |
944 | return 0; |
945 | |
946 | for (t = d->d_npartitions; t < BSD_MAXPARTITIONS; t++) { |
947 | d->d_partitions[t].p_size = 0; |
948 | d->d_partitions[t].p_offset = 0; |
949 | d->d_partitions[t].p_fstype = BSD_FS_UNUSED; |
950 | } |
951 | |
952 | if (d->d_npartitions > BSD_MAXPARTITIONS) |
953 | printf("Warning: too many partitions (%u, maximum is %u)\n", |
954 | d->d_npartitions, BSD_MAXPARTITIONS); |
955 | return 1; |
956 | } |
957 | |
958 | static int |
959 | xbsd_writelabel(struct partition *p) |
960 | { |
961 | struct xbsd_disklabel *d = &xbsd_dlabel; |
962 | unsigned int sector; |
963 | |
964 | #if !defined(__alpha__) && !defined(__powerpc__) && !defined(__hppa__) |
965 | sector = get_start_sect(p) + BSD_LABELSECTOR; |
966 | #else |
967 | (void)p; /* silence warning */ |
968 | sector = BSD_LABELSECTOR; |
969 | #endif |
970 | |
971 | d->d_checksum = 0; |
972 | d->d_checksum = xbsd_dkcksum(d); |
973 | |
974 | /* This is necessary if we want to write the bootstrap later, |
975 | otherwise we'd write the old disklabel with the bootstrap. |
976 | */ |
977 | memmove(&disklabelbuffer[BSD_LABELSECTOR * SECTOR_SIZE + BSD_LABELOFFSET], |
978 | d, sizeof(struct xbsd_disklabel)); |
979 | |
980 | #if defined(__alpha__) && BSD_LABELSECTOR == 0 |
981 | alpha_bootblock_checksum(disklabelbuffer); |
982 | seek_sector(0); |
983 | xwrite(dev_fd, disklabelbuffer, BSD_BBSIZE); |
984 | #else |
985 | seek_sector(sector); |
986 | lseek(dev_fd, BSD_LABELOFFSET, SEEK_CUR); |
987 | xwrite(dev_fd, d, sizeof(*d)); |
988 | #endif |
989 | sync_disks(); |
990 | return 1; |
991 | } |
992 | |
993 | |
994 | #if !defined(__alpha__) |
995 | static int |
996 | xbsd_translate_fstype(int linux_type) |
997 | { |
998 | switch (linux_type) { |
999 | case 0x01: /* DOS 12-bit FAT */ |
1000 | case 0x04: /* DOS 16-bit <32M */ |
1001 | case 0x06: /* DOS 16-bit >=32M */ |
1002 | case 0xe1: /* DOS access */ |
1003 | case 0xe3: /* DOS R/O */ |
1004 | case 0xf2: /* DOS secondary */ |
1005 | return BSD_FS_MSDOS; |
1006 | case 0x07: /* OS/2 HPFS */ |
1007 | return BSD_FS_HPFS; |
1008 | default: |
1009 | return BSD_FS_OTHER; |
1010 | } |
1011 | } |
1012 | |
1013 | static void |
1014 | xbsd_link_part(void) |
1015 | { |
1016 | int k, i; |
1017 | struct partition *p; |
1018 | |
1019 | k = get_partition(1, g_partitions); |
1020 | |
1021 | if (!xbsd_check_new_partition(&i)) |
1022 | return; |
1023 | |
1024 | p = get_part_table(k); |
1025 | |
1026 | xbsd_dlabel.d_partitions[i].p_size = get_nr_sects(p); |
1027 | xbsd_dlabel.d_partitions[i].p_offset = get_start_sect(p); |
1028 | xbsd_dlabel.d_partitions[i].p_fstype = xbsd_translate_fstype(p->sys_ind); |
1029 | } |
1030 | #endif |
1031 | |
1032 | #if defined(__alpha__) |
1033 | static void |
1034 | alpha_bootblock_checksum(char *boot) |
1035 | { |
1036 | uint64_t *dp, sum; |
1037 | int i; |
1038 | |
1039 | dp = (uint64_t *)boot; |
1040 | sum = 0; |
1041 | for (i = 0; i < 63; i++) |
1042 | sum += dp[i]; |
1043 | dp[63] = sum; |
1044 | } |
1045 | #endif /* __alpha__ */ |
1046 | |
1047 | /* Undefine 'global' tricks */ |
1048 | #undef disklabelbuffer |
1049 | #undef xbsd_dlabel |
1050 | |
1051 | #endif /* OSF_LABEL */ |